** Clearing Stata memory
capture log close
clear all
set more off, perm
set seed 1234

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////// Table O.22: Priority Subjects and Within-Exam Performance (Early vs. Late Questions) /////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

** Opening Phase 2 norm_scores dataset 
use "Work Data/Gender_Phase2_long.dta",clear

*** Creating variables
encode subject, gen (sub)
tab subject, gen (d_sub)
label var sub "Subject"

** Subject dummies
rename d_sub1 Biology
rename d_sub2 Chemistry
rename d_sub3 Geography
rename d_sub4 History
rename d_sub5 Language
rename d_sub6 Mathematics
rename d_sub7 Physics
rename d_sub8 Portuguese
* Labels
label var Biology "Biology"
label var Chemistry "Chemistry"
label var Geography "Geography"
label var History "History"
label var Math "Mathematics"
label var Physics "Physics"
label var Portuguese "Portuguese"
label var Language "Foreign Language"

** Interaction: priority X female
gen fem_priority=female*priority
label var fem_priority "Female $\times$ Priority"

** Interaction: priority X subject
foreach v of varlist Biology-Portuguese {
gen fem_`v'=`v'*female
label var fem_`v' "Female $\times$ `v'"
gen prio_`v'=priority*`v'
label var prio_`v' "Priority $\times$ `v'"
gen fem_prio_`v'=fem_priority*`v'
label var fem_prio_`v' "Female $\times$ Priority $\times$ `v'"
}

global subject "Chemistry Geography History Mathematics Physics"
global subject_fem "fem_Chemistry fem_Geography fem_History fem_Mathematics fem_Physics"

** P1 scores: P1 normalized subject-specific scores
forvalues i=2(1)4 {
gen norm_p1score`i'=norm_p1score^`i'
sum norm_p1score`i'
}

*** Creating new variables to measure performance difference in first and last questions

* Questions per subject and order
forvalues i=1(1)12 {
gen score_item`i'=.
levelsof subject, local(levels) 
foreach s of local levels {
replace score_item`i'=`s'`i'_st2 if subject=="`s'"
}
tab subject, sum(score_item`i')
}

* Average score first 4 questions
egen average_first4=rowmean(score_item1 score_item2 score_item3 score_item4) 
sum average_first4

* Average score last 4 questions
egen average_last4=rowmean(score_item9 score_item10 score_item11 score_item12) 
sum average_last4

* Difference: average score first 4 - average score last 4 
gen diff_first_last4=average_first4 -average_last4
sum diff_first_last4
tab subject, sum(diff_first_last4) 

*********************************************************************************
****************   Relative performances ****************************************
*********************************************************************************

******************************** ENEM ********************************

foreach v in norm_enem_w {
bys year female: egen `v'_ave_g=mean(`v')
gen `v'_g=`v'-`v'_ave_g
bys year female: sum `v'_g
}
drop  norm_enem_w_ave_g

* Interaction: subject X ENEM
foreach v of varlist Biology-Portuguese {
gen enem_`v'=`v'*norm_enem_w_g
label var enem_`v' "ENEM $\times$ `v'"
gen fem_enem_`v'=female*norm_enem_w_g*`v'
label var fem_enem_`v' "Female $\times$ ENEM $\times$ `v'"
forvalues i=2(1)4 {
gen enem_`v'_`i'=enem_`v'^`i'
gen fem_enem_`v'_`i'=fem_enem_`v'^`i'
}
sum enem_`v'* fem_enem_`v'*
}

global g_pol_enem_sub "enem_Chemistry* enem_Geography* enem_History* enem_Mathematics* enem_Physics*"
d $g_pol_enem_sub

* Priority x relative performance in ENEM:
foreach v in norm_enem_w {
gen `v'_priority_g=`v'_g*priority
forvalues i=2(1)4 {
gen `v'_priority_g`i'=`v'_g^`i'*priority
sum `v'_priority_g`i'
}
}

global g_norm_enem_w_prio norm_enem_w_priority_g*
d $g_norm_enem_w_prio

******************************** Phase 1 scores ********************************

foreach v in norm_p1score {

tab year, sum(`v')
bys year subject female: egen gs_`v'_ave=mean(`v')
gen gs_`v'=`v'-gs_`v'_ave
bys year female subject: sum gs_`v'
drop gs_`v'_ave

forvalues i=2(1)4 {
gen gs_`v'`i'=gs_`v'^`i'
sum gs_`v'`i'
}

global gs_pol_`v' gs_`v' gs_`v'2 gs_`v'3 gs_`v'4
d $gs_pol_`v'

* Priority x Phase 1 scores:
gen gs_`v'_prio=gs_`v'*priority
forvalues i=2(1)4 {
gen gs_`v'_prio`i'=gs_`v'`i'*priority
sum gs_`v'_prio*
}
}

global gs_pol_norm_p1score_prio gs_norm_p1score_prio*
d $gs_pol_norm_p1score_prio

*********************************************************************************
**************** Main sample ****************************************************
*********************************************************************************

* 1) Only years before the affirmative action took place
drop if aa_year==1
tab year
drop if year==2000
tab year

* 2) Drop Portuguese and Foreign Language (in Phase 1 there is no Portuguese or Foreign Language exams - For Portuguese Phase 1 has an essay)
 tab subject, sum(norm_p1score)
 drop if subject=="lang" | subject=="port" 
 tab subject, sum(norm_p1score)
 drop Language Portuguese prio_Language prio_Portuguese fem_prio_Language fem_prio_Portuguese 


*********************************************************************************
****************   Regressions **************************************************
*********************************************************************************

foreach var of varlist diff_first_last4 {

estimates clear

local lab: variable label `var'

reg `var' female priority fem_priority norm_enem_w_g , cluster(inscri2) 
estimates store reg1
estadd ysumm
reg `var' female priority fem_priority norm_enem_w_g $subject $subject_fem , cluster(inscri2) 
estimates store reg2
reghdfe `var' priority fem_priority $subject $subject_fem, cluster(inscri2) absorb(inscri2)
estimates store reg3
reghdfe `var' priority fem_priority $subject $subject_fem $g_pol_enem_sub, cluster(inscri2) absorb(inscri2)
estimates store reg4
reghdfe `var' priority fem_priority $subject $subject_fem $g_pol_enem_sub $g_norm_enem_w_prio, cluster(inscri2) absorb(inscri2)
estimates store reg5
reghdfe `var' priority fem_priority $subject $subject_fem $g_pol_enem_sub $g_norm_enem_w_prio $gs_pol_norm_p1score , cluster(inscri2) absorb(inscri2)
estimates store reg6
reghdfe `var' priority fem_priority $subject $subject_fem $g_pol_enem_sub $g_norm_enem_w_prio $gs_pol_norm_p1score $gs_pol_norm_p1score_prio, cluster(inscri2) absorb(inscri2)
estimates store reg7

estadd local sub_fe "No":  reg1
estadd local sub_fe "Yes": reg2 reg3 reg4 reg5 reg6 reg7

estadd local subgender_fe "No":  reg1
estadd local subgender_fe "Yes": reg2 reg3 reg4 reg5 reg6 reg7

estadd local ind_fe "No": reg1 reg2 
estadd local ind_fe "Yes": reg3 reg4 reg5 reg6 reg7

estadd local enemsub "No":  reg1 reg2 reg3 
estadd local enemsub "Yes": reg4 reg5 reg6 reg7

estadd local enemprio_pol4 "No":  reg1 reg2 reg3 reg4 
estadd local enemprio_pol4 "Yes": reg5 reg6 reg7

estadd local p1score_pol4 "No": reg1 reg2 reg3 reg4 reg5
estadd local p1score_pol4 "Yes": reg6 reg7

estadd local p1scoreprio_pol4 "No": reg1 reg2 reg3 reg4 reg5 reg6
estadd local p1scoreprio_pol4 "Yes": reg7 


* Tex
esttab reg1 reg2 reg3 reg4 reg5 reg6 reg7 using "Output/p_general_results_`var'.tex", se star(* 0.10 ** 0.05 *** 0.01) nogap ///
stats(ymean ysd sep r2_a N N_clust sep sub_fe subgender_fe ind_fe enemsub  enemprio_pol4 p1score_pol4 p1scoreprio_pol4 , fmt(%3.2fc %3.2fc %1s  %9.3fc %9.0fc %9.0fc %1s %3s %3s %3s %3s %3s %3s %3s %3s) labels("Mean dependent variable" "Std.dev dependent variable" " "  "$\bar{R}^2$" "Number of observations"  "Number of applicants" " " "Subject FE" "Subject-gender FE" "Individual FE" "ENEM $\times$ Subject FE" "ENEM $\times$ Priority" "Phase 1 scores"  "Phase 1 scores $\times$ Priority"  )) b(%7.3f) se(%7.3f)  booktabs replace f label nomtitle collabels(none) keep(female priority fem_priority norm_enem_w_g) refcat(female " \\ \multicolumn{8}{l}{\textit{Dependent variable: `lab'}} \\", nolabel)

}


